Bionic geometric reinforced assembly type pavement paving structure

Abstract

The utility model discloses a bionic geometry reinforced assembly type pavement paving structure, including outer frame, a plurality of round units, a plurality of hexagonal units, outer frame have a plurality of side walls, and the space for accommodating assembly is formed by surrounding, and the upper and lower direction sets the mouth, and round unit and hexagonal unit form the topological structure with the coordinated mechanics performance in the outer frame, and round unit and hexagonal unit are located at the same height, and a plurality of hexagonal units are arranged around the round unit, and each hexagonal unit is adjacent to the round unit, and one side of hexagonal unit coincides with the partial arc of round unit, thereby forming the common edge connecting structure.

Description

Technical Field

[0001] This utility model is a biomimetic geometrically enhanced prefabricated road paving structure. Background Technology

[0002] Eco-friendly paving products are gradually replacing traditional paving methods, with grass pavers being a prime example. They are widely used in parking lots, fire lanes, park greenways, and other locations requiring both load-bearing and permeable functions. However, existing traditional grass pavers still have several technical shortcomings, primarily in the following aspects: First, their compressive strength is generally low, unable to withstand high-frequency or heavy vehicle loads, making them prone to cracking and structural deformation. Second, limited by material properties and structural design, their durability in complex environments is poor, with an actual service life generally only 3 to 5 years. Third, their function is limited; besides load-bearing and some greening effects, they lack comprehensive stormwater management capabilities such as rainwater harvesting, slow release, and ecological regulation, making it difficult to meet the diverse needs of green infrastructure in the new era.

[0003] Therefore, it is urgent to optimize the structure and upgrade the materials of traditional grass pavers to improve their load-bearing capacity, extend their service life, and endow them with multifunctional rainwater management capabilities in order to better meet the actual needs of modern sponge city construction. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a biomimetic geometrically enhanced prefabricated pavement structure.

[0005] A biomimetic geometrically enhanced prefabricated pavement structure includes an outer frame, several circular units, and several hexagonal units. The outer frame has multiple sidewalls that enclose a space for accommodating components and has openings in the vertical direction. The circular units and hexagonal units form a topological structure with synergistic mechanical properties inside the outer frame. The circular units and hexagonal units are located at the same height. Several hexagonal units are arranged around the circular units, and each hexagonal unit is adjacent to the circular unit. One side of the hexagonal unit coincides with a portion of the circular unit's arc, thus forming a shared-edge connection structure.

[0006] Furthermore, the ratio of hexagonal units to circular units is 4:1, and the ratio of the side length of the hexagonal unit to the diameter of the circular unit is between 1:0.4 and 0.8.

[0007] Furthermore, the bottom of the circular and hexagonal units is provided with a reinforcing structure, which is a bidirectional orthogonal rib structure, with several intersecting nodes located at the center of each circular or hexagonal unit.

[0008] Furthermore, in the rib structure, the thickness of each rib decreases from the center to the edge, with a decay coefficient α of 0.85.

[0009] Furthermore, cylindrical support columns are provided at the junctions between adjacent sides of the hexagonal units and between the arcs of the circular units and the sides of the hexagonal units. The support columns are located at the same height as the circular units and the hexagonal units.

[0010] Furthermore, the wall thickness of the support column is 2.0-4.0 mm, the wall thickness of each side of the hexagonal unit is 1.5-1.8 mm, and the wall thickness of the circular unit is 1.6-2.0 mm.

[0011] Beneficial effects: Compared with the prior art, the present invention has the following advantages:

[0012] The structural strength is significantly improved. Through a composite topology design using hexagonal elements as the main load-bearing structure and circular elements as stress regulators, the structural force balance and stress distribution are effectively achieved. Finite element simulation analysis shows that, compared with traditional frame structures, the load-bearing capacity of this structure can be increased by up to 65% under the same mass conditions, significantly enhancing its suitability for high-load and multi-dimensional load scenarios (such as parking lots and urban roads).

[0013] The mechanical properties are enhanced by redundancy. A two-way orthogonal rib structure is set at the bottom of the load-bearing nodes, and a radial gradient design is implemented according to the principle of equal strength to form an efficient node strengthening mechanism. Combined with the hexagonal diagonally arranged reinforcing trusses, a multi-directional continuous stress transfer path is constructed. Even in the event of partial failure of the main structure, the substructure can still bear more than 70% of the design load, which has good destructive redundancy and system robustness.

[0014] The structural stability and crack resistance are improved. The circular unit is introduced into the system as a torsional damper, which has good deformation coordination ability. It can absorb local stress concentration under complex conditions such as uneven foundation settlement and reduce the risk of crack propagation. Simulation results show that the strain of the composite structure is reduced by about 30%, and the stability of the spatial structure is greatly improved. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a biomimetic geometrically enhanced prefabricated road pavement structure;

[0016] Figure 2 This is a top view of a biomimetic geometrically enhanced prefabricated pavement structure;

[0017] In the diagram, 1 is a hexagonal unit, 2 is a circular unit, 3 is a support column, 4 is an outer frame, and 5 is a rib. Detailed Implementation

[0018] To enhance understanding of this utility model, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.

[0019] A biomimetic geometrically enhanced prefabricated pavement structure includes an outer frame 4, several circular units 2, and several hexagonal units 1. The outer frame 4 has multiple sidewalls, forming a space for accommodating components, and has openings in the vertical direction. The circular units 2 and hexagonal units 1 form a topological structure with synergistic mechanical properties inside the outer frame 4. The circular units 2 and hexagonal units 1 are located at the same height. Several hexagonal units 1 are arranged around the circular unit 2, and each hexagonal unit 1 is adjacent to the circular unit 2. One side of the hexagonal unit 1 coincides with a portion of the circular arc of the circular unit 2, thereby forming a shared-side connection structure.

[0020] This structure utilizes biomimetic geometric topology design, constructing a honeycomb-like and arc-shaped composite synergistic mechanical support network through the tight integration of hexagonal and circular units 2. By connecting the sides of hexagonal unit 1 with the arcs of circular unit 2 along common edges, ground loads can be effectively transferred and distributed, reducing local stress concentration. The frame is equipped with upper and lower openings to facilitate the flow of paving materials throughout the entire structure, achieving bidirectional stable support in both vertical and in-plane directions. This design mimics the multi-structure synergistic effect in natural biological skeletal systems, enhancing overall load-bearing capacity and deformation resistance.

[0021] By optimizing the topology, the overall strength and compressive strength of the pavement structure are significantly improved, avoiding the localized collapse or damage problems that are prone to occur in traditional prefabricated pavement. At the same time, the high degree of standardization of structural components facilitates modular production and rapid on-site assembly, improving construction efficiency, saving construction time, and demonstrating good prospects for industrial application.

[0022] In one possible implementation, the ratio of the number of hexagonal units 1 to circular units 2 is 4:1, and the ratio of the side length of the hexagonal unit 1 to the diameter of the circular unit 2 is between 1:0.4 and 0.8.

[0023] This proportional design aims to optimize the arrangement density and mechanical compatibility of the units in the pavement structure. A 4:1 ratio allows hexagonal units 1 to form the basic frame network, while circular units 2 act as reinforcement points, helping to stabilize the structural deformation path. Maintaining a side length to diameter ratio between 0.4 and 0.8 helps maintain a reasonable infill rate and structural compactness, thereby improving mechanical strength and energy absorption capacity per unit area without increasing material waste.

[0024] This combined configuration reduces the number of components, improves modularity, and saves costs while ensuring the overall strength of the pavement. It also enables visual zoning between different functional areas, facilitating the integration of landscape and traffic functions.

[0025] In one possible implementation, the bottom of the circular unit 2 and the hexagonal unit 1 is provided with a reinforcing structure, which is a bidirectional orthogonal rib plate 5 structure, with several intersecting nodes located at the center of each circular unit 2 or hexagonal unit 1.

[0026] This reinforced structure enhances in-plane stability through a bidirectional orthogonal layout. Intersecting nodes are concentrated in the central area of ​​each unit, effectively bearing vertical loads from ground pressure while resisting lateral shear forces, thus improving the rigidity of the unit. The ribs 5 provide each unit with independent support capabilities, enhancing the fatigue resistance and durability of the entire paving system during use.

[0027] By introducing the rib plate 5 structure, the compressive strength and support capacity of the unit are significantly improved without increasing the structural thickness, and the service life of the structure is extended. At the same time, it provides reserved space for underground drainage, installation of photoelectric components, etc., and has good comprehensive utilization value.

[0028] In one possible implementation, in the rib 5 structure, the thickness of each rib 5 decreases from the center to the edge.

[0029] This design follows the principle of mechanical distribution, with the central area being the main load-bearing zone and therefore thicker, while the edges, where the stress is relatively less, are appropriately thinned. This decreasing thickness helps reduce the overall structural weight and improves material utilization efficiency. Simultaneously, the gradual thickness change from the center to the edge also helps to disperse stress, reduce stress concentration at interfaces, and prevent crack formation.

[0030] This structural layout improves local strength while reducing material consumption, enhances the lightweight characteristics of the structure, facilitates handling, installation and transportation, and improves the overall convenience of construction and maintenance.

[0031] In one possible implementation, the attenuation coefficient α of the thickness of the rib 5 decreasing from the center to the edge is 0.85.

[0032] This damping coefficient describes the energy dissipation capacity of a structure under dynamic loads. α=0.85 indicates that the structure has good damping characteristics and can effectively attenuate vibrations and impacts under periodic or transient loads such as vehicle traffic and temperature changes, thereby improving the comfort and stability of the pavement system.

[0033] Introducing this parameter enhances the structure's responsiveness under complex working conditions, improves seismic resistance and vibration reduction performance, and provides high-performance paving solutions for multi-functional scenarios such as urban roads and squares.

[0034] In one possible implementation, cylindrical support columns 3 are provided at the junctions between adjacent sides of the hexagonal unit 1 and between the arc of the circular unit 2 and the side of the hexagonal unit 1. The support columns 3 are located at the same height as the circular unit 2 and the hexagonal unit 1.

[0035] Support column 3 is positioned at the geometric connection node, significantly enhancing the structural integrity and local compressive strength of the node area. The cylindrical structure exhibits excellent stress uniformity, improving the mechanical stability of the connection area and preventing joint misalignment and structural instability without significantly increasing structural complexity. Simultaneously, its geometric symmetry simplifies mold manufacturing and on-site installation.

[0036] By strengthening the support structure at the connection points, the connection between each unit becomes tighter and more secure, reducing the risk of structural damage caused by displacement or impact and extending the service life of the structure.

[0037] In one possible implementation, the biomimetic geometrically enhanced prefabricated pavement structure employs a bidirectional interlocking design during module assembly. Specifically, the horizontal connection utilizes a dovetail groove interlocking structure, leveraging the wedge effect of the dovetail groove to effectively prevent relative displacement between modules in the longitudinal direction, thus enhancing the overall stability of the pavement structure. The vertical direction features a snap-locking interlocking structure, forming a stable connection through the snap-fit ​​engagement between modules, enabling integrated force transmission from top to bottom and enhancing overall shear resistance.

[0038] The aforementioned two-way interlocking design significantly improves the reliability of the pavement structure under high-load conditions (such as parking lots and logistics stations), while also simplifying the on-site installation process, reducing manual positioning errors, and enabling rapid construction and precise splicing. This assembly method not only enhances the overall rigidity and mechanical continuity of the structure but also improves long-term service performance and maintenance convenience.

[0039] In one possible implementation, the biomimetic geometrically enhanced prefabricated pavement structure possesses multifunctional integration capabilities. By reserving space at the reinforcing rib support positions at the connections of hexagonal units 1 or within the internal structure of circular units 2, intelligent hardware modules such as solar LED light strips, environmental monitoring probes, and automatic irrigation outlets can be installed, achieving the integration of modular lighting, intelligent monitoring, and ecological irrigation functions.

[0040] The aforementioned integration method leverages the inherent symmetry and spatial advantages of the structure to ensure a regular and convenient arrangement of functional components. Simultaneously, tight coupling with the structural interlocking system guarantees the stability and shock resistance of each integrated module during long-term operation. The solar-powered LED lighting system provides nighttime directional or warning lighting, environmental sensors monitor temperature, humidity, particulate matter, and other data in real time, and the irrigation unit can be used for refined water management in urban green spaces or ecologically paved areas.

[0041] This integrated design significantly enhances the application value and technological added value of prefabricated pavement structures, meets the comprehensive needs of smart city and green infrastructure construction, and strengthens the structure's intelligent perception and response capabilities.

[0042] In one possible implementation, the biomimetic geometrically enhanced prefabricated pavement structure serves as an integrated frame structure. The space enclosed by the circular units 2 and hexagonal units 1 can be filled with different materials according to actual application requirements. For example, in landscape greening or ecological functional areas, the interior can be filled with soil and planted with greenery to achieve ecological permeability and environmental beautification. In traffic or pedestrian areas, it can be filled with roadbed materials such as gravel and sand to enhance pavement friction and permeability while ensuring sufficient structural bearing capacity.

[0043] The infill material forms a stable interlocking relationship with the frame structure, ensuring the continuity and uniformity of the pavement surface while effectively distributing external loads, thus enhancing the overall structural adaptability and multi-functional performance. Through the selection and layout control of the infill material, functions such as drainage diversion, temperature mitigation, and landscape integration can also be achieved, contributing to improved environmental comfort and system operational efficiency in urban spaces.

[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A biomimetic geometrically enhanced prefabricated pavement structure, characterized in that, The device includes an outer frame, several circular units, and several hexagonal units. The outer frame has multiple side walls, forming a space for accommodating components, and has openings in the vertical direction. The circular units and hexagonal units form a topological structure with synergistic mechanical properties inside the outer frame. The circular units and hexagonal units are located at the same height. Several hexagonal units are arranged around the circular units, and each hexagonal unit is adjacent to the circular unit. One side of the hexagonal unit coincides with a portion of the circular unit's arc, thus forming a shared-edge connection structure.

2. The biomimetic geometrically enhanced prefabricated pavement structure according to claim 1, characterized in that, The ratio of hexagonal units to circular units is 4:1, and the ratio of the side length of the hexagonal unit to the diameter of the circular unit is between 1:0.4 and 0.

8.

3. A biomimetic geometrically enhanced prefabricated pavement structure according to claim 1 or 2, characterized in that, The circular and hexagonal units have a reinforcing structure at the bottom. The reinforcing structure is a bidirectional orthogonal rib structure, with several intersecting nodes located at the center of each circular or hexagonal unit.

4. The biomimetic geometrically enhanced prefabricated pavement structure according to claim 3, characterized in that, In the ribbed structure, the thickness of each rib decreases from the center to the edge, and its attenuation coefficient α is 0.

85.

5. The biomimetic geometrically enhanced prefabricated pavement structure according to claim 1, characterized in that, A cylindrical support column is provided at the junction between adjacent sides of the hexagonal unit and at the junction between the arc of the circular unit and the side of the hexagonal unit. The support column is at the same height as the circular unit and the hexagonal unit.

6. The biomimetic geometrically enhanced prefabricated pavement structure according to claim 1, characterized in that, The wall thickness of the support column is 2.0-4.0 mm, the wall thickness of each side of the hexagonal unit is 1.5-1.8 mm, and the wall thickness of the circular unit is 1.6-2.0 mm.

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